Eveeett l



(Nb Model.)

B, L, LAKE.

pom; FOR FIRE ARMS.

No. 289,428. Patented Dec. 4, 1883.

WITNESSES.

' lNVf/VTOF FNITED STATES EVERETT L. LAKE, OF SYRACUSE, NEW YORK.

LOOK FOR FIRE-ARMS.

SPECIFICATION forming part of Letters Patent No. 289,423, dated December4, 1883,

Application filed March 26, 1883.

To all whom it may concern.-

Be itknown that I, EVERETT L. LAKE, a citizen of the United States,residing at the city of Syracuse, county of Onondaga, and State of NewYork, have invented a new and useful Improvement in Gun and PistolLocks, of which the following is a specification.

My invention relates to improvements in gun or pistol locks; and itconsists of cutting dovetailed notches or mortises in either the tumbleror in the hammer-tumbler of the lock, and of adding a hook or dovetailtenon to the sear, the latter being small enough to enter the mortise ornotch in the same manner as if the mortise and tenon were square.

The object of my invention is to set the hammer and thus prevent thepossibility of an accidental discharge, and I attain these objects bymechanism shown in the accompanying drawings, in which- Figure 1represents the side view of a gunlock assembled; Fig. 2, a side view ofthe hammer-tumbler, sear, and trigger, showing the device where the searconnects directly with the hammer-tumbler and sets it; Fig. 3, the searwith tenon thereon and trigger. Fig. 4 shows part of the lock mechanismseen in Fig. 1, with the additional device to set the hammer atfull-cook.

Similar letters refer to similar parts in the several views.

In Fig.1, t is the tumbler and a the dovetail notch or mortise cuttherein. sis the scar, and d the hook or dovetail tenon added theretoand entered in the mortise a, and b and c are the back and front sidesof the tenon (Z, and H is the hammer-tumbler. T is the trigger.

In Fig. 5, s is the sear; p, the pin extending at right angles from theside at the nose of the sear, the nose entering into the notch a of thetumbler when the hammer is at full-cook; h, latch attached to thetumbler with operatinglever extending back to the trigger, and havingthe end of the latch provided with the hook 2, which hook passes underthe pin 19 of the sear as it enters the notch a. In the lock assembled Iundertake to draw the hammer back in the usual manner for cocking, andthe edge 22 of the hook or tenon 01 engages the corresponding dovetailmortise just back of it, as shown in Fig. l, and it is impossible tocook the hammer; or I undertake to crowd the (No model.)

hammer forward with the same result. I pull back simultaneously upon thetrigger and hammer, and cl is withdrawn from a and I can cook thehammer, and when the hammer is at full-cock the book i of the latchholds the pin 12 of the soar in the notch a until it is removed by thetrigger throwing up the lever of the latch as it is drawn back todischarge the gun or on guns and pistols where the hammer is cooked bypulling back the trigger, the pulling back of the trigger is all that is-necessary to disengage the hook d from the notch a.

It is apparent that the only way the hammer can be cooked is by the useof the hammer and trigger.

I am aware that a square mortise and tenon have been used in certainlocks to set the hammer; but where the sear and trigger are combined thefulcrum is below the notch, and a blow or drawback up on the thumb-pieceeasily throws out the tenon, while with my device the cooking isimpossible without use of the trigger.

I claim 1. In combination, the tumbler t, having dovetailed mortise aand notch a, with sear 8, having dovetailed tenon d to enter the mortiseand notch, and having pin 19, and the latch h having hook i to catchunder the pin, and operating-lever resting upon the trigger to set thehammer at half and full cock, as

shown and specified.

2. In a lock for fire-arms, the latch h, having a lever resting upon thetrigger, and a hook to swing over a pin extending from the nose of thescar and to hold the nose of the sear in the notch a, and, incombination with the notch a of the tumbler, set the hammer atfull-cock, as shown, and for the purposes specified.

3. In a lock for fire-arms, the combination of a sear or trigger havinga dovetailed tenon with a plate connected to the hammer, and

provided with a dovetailed mortise which re- EVERETT L. LAKE.

Witnesses:

HOMER WESTON, J OHN DEAN.

